Q: What are the prime factors of the number 166,655,400?

 A: 2, 3, 5, 37, 7507

Why are those the prime factors of the number 166,655,400?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 166,655,400

166,655,400
Factor Arrows
283,327,700
Factor Arrows
241,663,850
Factor Arrows
220,831,925
Factor Arrows
36,943,975
Factor Arrows
51,388,795
Factor Arrows
5277,759
Factor Arrows
377,507

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

2, 3, 5, 37, 7507

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 5 x 5 x 37 x 7,507 = 166,655,400

This can also be written as 23 x 31 x 52 x 371 x 7,5071 = 166,655,400

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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